This only effected tklbam-restore's behavior on small and medium sized EC2 instances (not Micro) since 27/10/2011 when we started mount --bind /tmp to /mnt. Restores to non-EC2 TurnKey installations worked fine. Also, there was never a problem with the backups themselves, just the restore process.

Bottom line: I committed a fix, and we'll push out an automatic update tomorrow so that everyone gets a new version of tklbam automatically. After that restores should work just fine everywhere.